Foldable support device



FIG. 1 is a front prospective view of a foldable support device assembled with a bingo card attached;

FIG. 2 is a side view of the foldable support device assembled, with the opposite side being a mirror image thereof;

FIG. 3 is a top perspective view of the foldable support device unassembled;

FIG. 4 is a bottom perspective view thereof the foldable support device unassembled; and,

FIG. 5 is a side view of the foldable support device folded in half.

The bingo card is shown with broken lines and is not part of the invention. 

The ornamental design for the “foldable support device,” as shown and described. 